The figure quoted for the percentage of TA who wish to quit doesn't in my view apply to the RAuxAF. Whilst there were some problems on Telic caused by the regulars expecting some very experienced Regt reserves to do all the mundane tasks whilst they did the exciting stuff, very few voted with their feet (which is a reflection of their dediction). The Medics also had a problem following the decision to not grant those involved in the medevac missions a telic medal.
It should also be pointed out that with some 2300 members the RAuxAF is considerably smaller than the TA.
As for Sudan, is the problem not the numbers of personnel but having sufficient AT to both get them in theatre and supporting them thereafter?